That sounds great, but do you really believe it would beat a 600 whp sti even if you put work into the z06 !

Why would you need to put a whole lot of money in it because it is an 02? You can invest a whole lot less and get a Z06 to be equal to a 600 STi. I love my Subaru but corvette Z06 is a better based car for dragging/straight line racing. This is not a hate on Subaru. STi's and WRX were not built for the purpose of straight line racing. They do off road and autox great and that is what they are built for. A 600whp Z06 would be much easier to drive then a 600whp STi.